Home / 131,439.02-181,385.93-71,009.64

Finding the Fourth Proportional to 131,439.02, 181,385.93 and 71,009.64

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Solution

The fourth proportional to 131,439.02, 181,385.93 and 71,009.64 is: 97,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.02 : 181,385.93 = 71,009.64 : x
  2. Step 2: Convert to fraction form
    131,439.02/181,385.93 = 71,009.64/x
  3. Step 3: Cross multiply
    131,439.02x = 181,385.93 × 71,009.64
  4. Step 4: Simplify right side
    131,439.02x = 12,880,149,257.74
  5. Step 5: Solve for x
    x = 12,880,149,257.74/131,439.02
  6. Step 6: Final answer
    x = 97,993.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.